ICD-10-CM › S00-T88 › S40-S49 › S40.84 External constriction of upper arm › S40.849

S40.849

External constriction of unspecified upper arm

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • S40.849A External constriction of unspecified upper arm, initial encounter
  • S40.849D External constriction of unspecified upper arm, subsequent encounter
  • S40.849S External constriction of unspecified upper arm, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2014 Added to the draft code set draft External constriction of unspecified upper arm

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from S40 Superficial injury of shoulder and upper arm

Seventh character required

  • The appropriate 7th character is to be added to each code from category S40

Inherited from the S40-S49 section Injuries to the shoulder and upper arm (S40-S49)

Excludes2 - not included here

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of elbow (S50-S59)
  • insect bite or sting, venomous (T63.4)

Includes

  • injuries of axilla
  • injuries of scapular region

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
S40.841 External constriction of right upper arm Not billable
S40.842 External constriction of left upper arm Not billable